Generic Castable ODS (Oxide Dispersion Strengthened) Metals, Phase 1, Final Report

摘要

The research demonstrated the feasibility of preparing a castable oxide dispersion strengthened (ODS) metal alloy with improved high temperature strength. Castability was obtained by modifying the oxide surface and alloy composition so that oxide wetting was obtained. Castable ODS aluminum alloys were prepared and extruded. Transmission Electron Micrographs (TEM) showed the oxide dispersion in the aluminum castings and extrusions. The tensile strength of the ODS aluminum was 25% higher than the non-ODS alloy after extended high temperature exposure. Cast Monel samples were also prepared. TEM examination showed that the oxides had been dispersed in the samples.